Behavior EngineNodesUtilitiesAppendAppends a single item or concatenates an array of items to an existing list.Copy MarkdownOpenInputs The inputs required to configure this node. PropTypelistunknown[]itemunknownconcatenateboolean Outputs The payload this node emits after execution. PropTypelistunknown[]Update Typing StatusUpdates the frontend typing indicator status for a specific participant in a chat session.CommentA purely visual node used for leaving notes or comments in the graph editor. Does not affect execution.